<html><head><title>Change or add a default</title><meta name="HandheldFriendly" content="True"></head><body>Change or add a default<br><br><b>alter</b> <b>table</b> [database.[owner].]table <b>replace</b> column <b>default</b> { constant_expression | <b>user</b> | <b>null</b> }</body></html>